A Highly Compact Active Wideband Balun With Impedance Transformation in SiGe BiCMOS

Autor: Balwant Godara, A. Fabre
Přispěvatelé: Fabre, Alain
Rok vydání: 2008
Předmět:
Zdroj: IEEE Transactions on Microwave Theory and Techniques. 56:22-30
ISSN: 0018-9480
DOI: 10.1109/tmtt.2007.911932
Popis: A new conveyor-based single-ended to differential balun is proposed. Thanks to the quasi-absence of passive components, this is an extremely size-efficient balun (0.036 ). The use of a new impedance-matching technique makes this balun the first transistor-based solution with controllable port impedances. Fabricated in a 0.35-mum SiGe BiCMOS technology with fT=45 GHz, the balun shows the following performance: wideband impedance matching at all three ports, good balance between the two outputs (better than 3 dB in amplitude and 13deg in phase) over frequency bands extending from 0 to 3 GHz, linear operation for powers up to input powers of -2 dBm, and stability against temperature and process variations.
Databáze: OpenAIRE